Intercooler fan yes or no ?

[4bye4]

Just came back from a run on the beach with our club. I have no fan on the intercooler and had EGT's of 350deg on the bitumen at 100 to 110 on the way there and back. Dead slow on the beach through the sand for nearly and hour, never exceeded 400 deg and water temp was steady all day at 90 to 92 deg. Admittedly the EGTs were up dead slow in the sand, but I don't see it as an issue. BTW the ambient temp was mid to high 30's.

[vlindustrias]

it is not that important you should better make a good vent and a air box so the air comes at fast y continuos rate during the advance of the car i used to have a IC fan and it cant see any difference. and the fan allways will be a source of noises

[GeeYou8]

Agree entirely. I only wish I could get the air to flow through all of the intercooler instead of back half only, as in photo in my earlier post.

The dirt only on the rear of the IC is exaggerated because the dirt is heavier than the air so it travels further to the rear than the air.
Or if you prefer, the dirt is stationary and the IC moves further forward before it is directed downward onto the IC (A body remains at rest or in motion until acted upon by an external unbalanced force).
So the problem is not as bad as it looks, but there will still be some difference in air flow between front and rear.
Graham